package com.mall.framework.shiro.service;

import com.mall.common.constant.Constants;
import com.mall.common.constant.ShiroConstants;
import com.mall.common.constant.UserConstants;
import com.mall.common.enums.UserStatus;
import com.mall.common.exception.user.*;
import com.mall.common.utils.DateUtils;
import com.mall.common.utils.MessageUtils;
import com.mall.common.utils.ServletUtils;
import com.mall.framework.manager.AsyncManager;
import com.mall.framework.manager.factory.AsyncFactory;
import com.mall.framework.util.ShiroUtils;
import com.mall.system.domain.entity.SysUser;
import com.mall.system.service.SysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;

/**
 * 登录校验方法
 * Created by zhonglin on 2020/4/8.
 */
@Component
public class SysLoginService {

  @Autowired
  private SysPasswordService passwordService;

  @Autowired
  private SysUserService userService;

  /**
   * 登录
   */
  public SysUser login(String username,
                       String password) {
    // 验证码校验
    if (!StringUtils.isEmpty(ServletUtils.getRequest()
                                         .getAttribute(ShiroConstants.CURRENT_CAPTCHA))) {
      AsyncManager.me()
                  .execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.error")));
      throw new CaptchaException();
    }
    // 用户名或密码为空 错误
    if (StringUtils.isEmpty(username) || StringUtils.isEmpty(password)) {
      AsyncManager.me()
                  .execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("not.null")));
      throw new UserNotExistsException();
    }
    // 密码如果不在指定范围内 错误
    if (password.length() < UserConstants.PASSWORD_MIN_LENGTH || password.length() > UserConstants.PASSWORD_MAX_LENGTH) {
      AsyncManager.me()
                  .execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
      throw new UserPasswordNotMatchException();
    }

    // 用户名不在指定范围内 错误
    if (username.length() < UserConstants.USERNAME_MIN_LENGTH || username.length() > UserConstants.USERNAME_MAX_LENGTH) {
      AsyncManager.me()
                  .execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
      throw new UserPasswordNotMatchException();
    }

    // 查询用户信息
    SysUser user = userService.selectUserByLoginName(username);

    if (user == null && maybeMobilePhoneNumber(username)) {
      user = userService.selectUserByPhoneNumber(username);
    }

    if (user == null && maybeEmail(username)) {
      user = userService.selectUserByEmail(username);
    }

    if (user == null) {
      AsyncManager.me()
                  .execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.not.exists")));
      throw new UserNotExistsException();
    }

    if (UserStatus.DELETED.getCode()
                          .equals(user.getDelFlag())) {
      AsyncManager.me()
                  .execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.delete")));
      throw new UserDeleteException();
    }

    if (UserStatus.DISABLE.getCode()
                          .equals(user.getStatus())) {
      AsyncManager.me()
                  .execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL,
                                                         MessageUtils.message("user.blocked", user.getRemark())));
      throw new UserBlockedException();
    }

    passwordService.validate(user, password);

    AsyncManager.me()
                .execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_SUCCESS, MessageUtils.message("user.login.success")));
    recordLoginInfo(user);
    return user;
  }

  private boolean maybeEmail(String username) {

    if (!username.matches(UserConstants.EMAIL_PATTERN)) {
      return false;
    }
    return true;
  }

  private boolean maybeMobilePhoneNumber(String username) {

    if (!username.matches(UserConstants.MOBILE_PHONE_NUMBER_PATTERN)) {
      return false;
    }
    return true;
  }

  /**
   * 记录登录信息
   */
  public void recordLoginInfo(SysUser user) {

    user.setLoginIp(ShiroUtils.getIp());
    user.setLoginDate(DateUtils.getNowDate());
    userService.updateUserInfo(user);
  }

}
